Question

three runners A,B and C is running at 3 km/h, 7km,h and 13 km/h respectively on a circular road whose length is 12 km after how much time they will meet together

Answer 1

Answer: 12 hours.

Solution:

Formula: Speed = Distance/Time.

Time taken by A to cover distance = 12/3 = 4.

Time taken by B to cover distance = 12/7.

Time taken by C to cover distance = 12/13.

LCM of 4, 12, 12 = 12.

They will meet again after 12 hours.

hope it helps.
pls mark me as braimliest if u like this